Outcome/Subgroup	Studies	Number	MD (S–A)	SE (MD)	Effect estimate (95% CI)	Z test
11.2.1. aMD in HR at 5 minutes after turn	George 2002	14	0.357	5.486	0.36 (‐10.40 to 11.11)	0.07 (P value = 0.95)
11.2.2. aMD in HR at 15 minutes after turn	George 2002	14	1.286	1.982	1.29 (‐2.60 to 5.17)	0.65 (P value = 0.52)
11.2.3. aMD in HR at 30 minutes after turn	George 2002	14	‐7.643	2.733	‐7.64 (‐13.00 to ‐2.29)	2.80 (P value = 0.005)